Accreditation I believe:)
Answer:
Egypt was considered isolated because the civilization was only centered along the Nile, and had geographical features that cut it off from the rest of the world.
Explanation:
To the north, the Mediterranean Sea allowed communication with Anatolia and Greece, but only by sea, not by land.
To the west, the Sahara desert was a buffer with several nomadic and semi-nomadic tribes. To the East, the Sinai desert and peninsula made communications harder with Palestine, and Mesopotamia, and to the South, the Desert of Sudan made communications hard with Nubia and Ethiopia.
The benefit was a lower probability of conflict or invasion from other tribes, but it also had a drawback and was lesser trade and integration.
Answer:
Impact of Dunkirk While the German blitzkrieg was undoubtedly successful (France would call for an armistice by mid-June 1940), the largely successful evacuation of the bulk of Britain's trained troops from near-annihilation proved to be a key moment in the Allied war effort.

It is like Nixon said, "no event in American history is more misunderstood than the Vietnam War." I can't give a clear answer but I do have some food for thought which may paint a big picture.
1. You have to keep in mind that Vietnam was not about who killed more troops.
If the winner of the Vietnam war was declared by who killed more troops than the U.S. would win hands down. The U.S. casualties were roughly half a million, where as the Vietcong suffered a little more than a million. Then how did we lose?
2. Keep in mind that at this time technology has improved and Vietnam is the first war where people are watching it go on right at home on there television screen.
They are seeing their sons being shot and viewing dead soldiers every single day.
You did not see this in WW1 or WW2 or the Korena War.